Tungsten shield price

The price is primarily driven by tungsten content (purity) and density. For medical and nuclear applications, a density of 17.0 to 18.8 g/cm³ is standard. You must specify whether you require Tungsten Heavy Alloy (W-Ni-Fe or W-Ni-Cu) or Flexible Tungsten Silicone, as the latter is cheaper but offers less attenuation per mm. Ensure the supplier provides a Radiation Attenuation Report to verify the shielding effectiveness against specific isotopes like Tc-99m or I-131.

B2B buyers must ensure products meet ISO 9001 for manufacturing consistency and ISO 13485 if the shields are used in medical devices. For international trade, verify that the material is Conflict-Free and complies with REACH and RoHS standards, especially if the shield has a polymer coating. Failure to provide Material Test Reports (MTRs) can lead to customs delays and safety liabilities.

Usage scenarios range from Medical Imaging (PET/CT) and Radiotherapy to Industrial Non-Destructive Testing (NDT). Custom-machined parts like collimators or syringe shields involve high precision (tolerances of ±0.05mm), which increases the labor cost. For large-scale nuclear shielding, interlocking tungsten bricks are more economically feasible than single-piece large castings due to easier transport and installation.

While tungsten has a higher upfront cost, it is non-toxic and environmentally friendly, eliminating the high disposal costs associated with lead. Tungsten is 25-50% more effective at attenuating radiation in smaller volumes, making it the only feasible choice for space-constrained applications. Calculate the Total Cost of Ownership (TCO) by including the lack of specialized hazardous material handling fees required for lead.

The most significant risk is material substitution, where suppliers may use lower-density alloys to save costs. Always request a pre-shipment inspection (PSI) to verify the weight and density. Additionally, tungsten is a volatile commodity; prices fluctuate based on global market rates. Secure a fixed-price contract for the duration of the production cycle to avoid unexpected surcharges.

Focus on Tiered Pricing based on weight (kg) rather than just unit price. Ask for Gold Member or Audited Supplier status verification on Made-in-China.com to ensure the factory has been physically inspected. Negotiate for sample rebates, where the cost of the initial prototype is deducted from the first bulk order of 50 units or more.

Tungsten is extremely heavy; therefore, sea freight is usually the only viable option for bulk orders to manage costs. Ensure the supplier uses reinforced wooden crates (IPPC certified) with internal padding to prevent cracking during transit, as tungsten can be brittle. For urgent medical components, use air freight but verify the dimensional weight impact on the final shipping quote.

Utilize Secured Payment services provided by Made-in-China.com to ensure funds are only released upon proof of shipment. For large-scale industrial projects, use a Letter of Credit (L/C) or a 30% deposit / 70% against Bill of Lading (B/L) structure. Always verify the supplier's Export License specifically for specialized alloys to prevent seizure by customs.